Most unimplemented terrain between zones has been filled for a seamless flying experience, with new mountains, lakes inaccessible by foot, and other filler terrain introduced. Rough jarring shifts in textures in areas not supposed to be accessible by foot have been smoothed over.

Steamwheedle Port has sunk under the sea, along with a large chunk of the land at the northeast until Gadgetzan, which has been converted into a port.

The Uldum gate in the Valley of the Watchers has changed in appearance significantly, and now leads to a dungeon area. There is now also a second, overland entrance to the partially-implemented Uldum zone.

The Command Center and SI:7 no longer have narrow corridors leading to them, and are now located on a green meadow outside the Old Town. Oddly enough, the locations of the two buildings have been swapped. The Command Center now also has hunter trainers and Justice/Valor Point vendors inside it; Master Wood has been moved outside.

Low-level inks can no longer be traded for Ink of the Sea but now for Blackfallow Ink. However, since the ingredients for this ink aren't available before the release of Cataclysm, low-level inks can't be traded right now.

The [Flight Master's License] (previously known as Azerothian Navigation) is available at level 60. It allows flying in Azeroth and costs 250 gold.

Master Riding is available at level 80. It allows flying at 310% speed and costs 5000 gold (without reputation bonuses).

Smart mount macros are broken because all of Azeroth is now marked as flyable.

Some, but not all, flying mounts are now usable in Azeroth as land mounts - this seems to be mostly crafted mounts such as Tailor-made flying carpets and Engineer-made flying machines. The mount operates only as a land mount, unless in water, where you will be unmounted like on a flying mount.

Is it possible to mount up and fly on a flying mount when swimming at the surface of water.

Character creation screens for gnomes and trolls have been updated with new backgrounds, featuring the Gnomeregan surface and Echo Isles respectively.

The Azeroth world map, maps of Kalimdor and the Eastern Kingdoms, and most old-world zone maps have been updated for the Cataclysm changes, and now feature a different visual style reminiscent of TBC/Wrath maps.

The PvP interface has been updated to support rated battlegrounds. It also allows creating an arena team without visiting an arena master.